A multifunctional oil well cement additive was developed.

研究开发出了多功能油井水泥外加剂。

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So it can be the raw material of fluid loss additive for oil well cement.

因此，可以把它作为油井水泥降失水剂的原料。

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The results showed that SAF has excellent dispersing effect on the well cement, and so it has a fine prospect.

实验结果表明，SAF水泥分散剂对油井水泥具有良好的分散减阻作用，是一种有发展前途的固井水泥浆添加剂。

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Workers later added cement to harden in the well to seal it permanently.

VOA: special.2010.08.07

Norma Fiorentino's water well blew up on New Year's Day 2009, throwing cement slabs into the air.

VOA: standard.2010.01.02

BP, rig owner Transocean and well cement contractor Halliburton have blamed each other for the disaster.

CNN: No signs of 'dead zone' in Gulf, feds say

In September, a government report on the spill found that BP, rig owner Transocean and well cement contractor Halliburton shared responsibility for the explosion, but BP was "ultimately responsible" for operations at the site.

CNN: First criminal charges filed in BP oil spill

Nucor ( NUE - news - people ), as well as cement makers.

FORBES: Regulations